Something is causing that MOSFET to blow by drawing too much current through it.

When you removed it, was the short gone?

The 12V was shorted by a single mosfet located on the left side of the image attached below. (indicated with a green arrow)
Removing that mosfet did remove the short but when I replaced the mosfet and powered the card with the auxiliary power, the new mosfet failed again and resulted in the 12V being shorted again.

I have not found which rail might be shorted by the small mosfet located on the right side of the image (Near the edge of the card. Indicted with the green arrow).
That mosfet burnt out while the card was installed into the slot but not connected to the AUX power.
I'm not sure if the rail that it belongs to is shorted because I first need to identify which rail it belongs to and where to measure that rail for shorts.

I've once again removed the two mosfets indicated by the green arrows in the post above and now the PC turns on with the card installed and the AUX power connected.
The core gets hot over time (about 1 minute) but there is no display output.

If I set the BIOS to use the onboard display and boot into Linux, the GTX 1070 is detected but MATS indicates that all memory phases are in an error state.

I only have 4 more of each mosfet available and I'm quite sure if replace them a second time, they will fail again but I don't know why.

I have not removed the mosfet driver for the mosfet on the left of the image. I'm not sure if it should be replaced together with the mosfet and I don't have any spares available.
Do you think the card should work with the mosftets removed, albeit slightly crippled in terms of power.

If that Mosfet is for the RAM then the card will not work.

I've tested all the voltages, I've got 12V, 5V, 1.8V and PEX.

My DM just indicates ohms when I check the memory inductor while the card is powered. Without power, the reading is 108ohms.
What voltage should I be reading for memory while the card is powered?

I don't have a thermal camera but it might have been helpful to identify a shorted module.

I assume there are enough redundant mosfets that the card should still work with those that I've removed.

Looks like the reference PCB of the 1070, so perhaps this 1070Ti (which had the same PCB iirc) schematic could help..

tehsiggi wrote on 2025-10-05, 16:59:

Looks like the reference PCB of the 1070, so perhaps this 1070Ti (which had the same PCB iirc) schematic could help..

Thank you!